SINGLE CYLINDER HEAD 8C3464 - Caterpillar

REBE1728-00
01Mar2007
PCPY
Z782
Before/After
(Limited distribution)
PRODUCT SUPPORT PROGRAM FOR REPLACING THE PISTON SKIRTS ON CERTAIN C-12 TRUCK ENGINES
1214 PS42354
This Program must be administered either before or after failure.In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS42354" as the Part Numberand "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code.If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
The information supplied in this service letter may not be valid after the termination date of this program.Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
TERMINATION DATE
31Mar2009
PROBLEM
Piston skirts on certain C-12 may crack and fail. This failure may cause additional engine damage.
AFFECTED PRODUCT
Model Identification Number
C-12 MBL13287-13288, 13313, 13315-13318, 13374-13375, 13377, 13423, 13483-13484, 13489, 13497-13500, 13502, 13514, 13516, 13559, 13566-13568, 13676-13679, 13721, 13749, 13753-13756, 13793, 13797, 13800, 13804, 13828-13829, 13833-13838, 13889, 13894-13898, 13979-13981, 14503, 14506, 14508-14511, 14597, 14708, 14756, 19604
PARTS NEEDED
Qty
Part Number Description
6 4G4972 SEAL-O-RING
26 5P8211 SEAL-O-RING
1 6V8676 SEAL-O-RING
6 7L6580 SEAL-O-RING
1 1013125 GASKET
1 1043560 SEAL-LINER
2 1142687 SEAL-O-RING
6 1161089 BEARING-ROD
1 1182797 GASKET
6 1293184 BOLT-HEX HEAD
1 1523001 BOLT-HEX HEAD
6 1873307 GASKET AS-CYL
4 2382712 SKIRT-PISTON
ACTION REQUIRED
Refer to the attached Rework Procedure.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-500000 miles,
0-48 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
500001-550001 miles,
49-62 mo 70.0% 100.0% 0.0% 0.0% 30.0% 0.0%
550002-600000 miles,
63-72 mo 50.0% 100.0% 0.0% 0.0% 50.0% 0.0%
This is a 20.8-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Rework Procedure
When you remove the cylinder packs from the engine follow the
instructions below in order to install the skirts.
Image1.1.1
1.Making sure that the piston rings do not come out from the liner.
Push piston from the top in order to expose the skirt and pin
assembly at the bottom of the liner.
Image1.2.1
2. Push the pin out of the piston and piston skirt.
Image1.3.1
Image1.3.2
3. Align new skirt on the piston. Install the pin assembly
Image1.4.1
4.Install new Seal O-ring for the liner.
5. Follow the D&A manual for the rest of the procedure.